Spool puller



June 1 8, 1929. 'v. WENTWO'RTH 1,717,822

sroon FULLER Filed May 9, 1928 INV TR ell 72571270072 2 '2 ATTORN S.

Patented June 18, 1929. J

UNITED STATES PATENT OFFICE.

JOY V. WENTWORTH, F LONG BEACH, CALIFORNIA, ASSIGNOR OF ONE HALF TO JOHN JOSEPH LONG, OF LONG BEACH, CALIFORNIA.

SPOOL FULLER.

Application filed May 9, 1928. Serial No. 276,286.

This invention relates to heavy duty tools against the shaft S and the spool O is pulled for use in oil fields and other places where loose or off the shaft. it is desirable to pull spool drums sometimes It is understood that the tool may be ap- 4 called cat heads from their shafts. plied to many kinds of winding drums and It is an object to provide a simple and other machines and parts.

powerful tool of easy application and re- It will be seen that the pressure of pulling moval, and of few parts which are designed is taken all around the cat head flange and for safety of operation and reliable action. evenly distributed so as not to bind the drum o Other objects, advantages and details of on its shaft. 10 construction and combination will be made Figure 3 illustrates the jack screw 4 as manifest in the ensuing description of the having a turnhead 4 and an interposed ballherewith illustrative embodiment; it being bearing l whereby to reduce back pressure understood that modifications, variations and on the screw during action. adaptations may be resorted to within the What is claimed is; spirit, scope and principle of the invention as 1. A cat head drum puller including a it is hereinafter more directly claimed. C-clamp frame whose hook ends are appli- Figure 1 is a side elevation of the applied cable to catch behmd the flange on the end tool. of the mounted drum, a center screw in the Figure 2 is a clamp-end view of the tool. frame for action against the drum shaft,

Figure 3 is a detail showing the jack screw and a pair of half rings applicable to the as having a ball-bearing point. drum and behind its flange, and means for The tool is here shown as applied to a securing the half rings in collar forming cat-head spool C on a shaft S. Spools of position about the drum and fastening them this type are large and heavy and have roundto the respective side faces of the hook-ends ed bead flanges F. of the frame.

The present device includes a strong C- 2. A drum puller having a C-clamp frame clamp frame 2 having a central boss 3 threadhaving pulling hooks to catch a cat head ed for a jack screw 4 having a cone point for flange, a center jack-screw therefor, and a centering on the shaft end. The hook ends collar consisting of semicircular parts hav- 3 of the clamp reach in over the spool flange ing ears to seat on opposite sides of the and to the ends 3 are applied opposed semiclamp hooks, and bolts securing the applied circular collar parts 6-7 whose diameter is ears in place.

such as to embrace the body of the spool and 3. A cat head drum puller including a pull up behind the outer flange F. C-clamp with hook ends to over-reach the The split collar has ears 8 clamped to the contiguous end bead of the drum, and a jack frame hooks by means of bolts 9. screw passing through the medial bodv porlYhen the tool is to be used the screw 4: is tion of the clamp and having a rotative thrust run back and the clamp frame 2 is set across end, and a ball-bearing interposed between the end of the spool and shaft, the collar the thrust end and the contiguous part of the parts are now applied around the spool and screw. the bolts 9 run in and set to secure the ring 6-7 in place. The screw 4 is now turned in JOY V. lVENTlVORTH. 

